contentgrabber.php

<?php

ini_set('default_charset', 'UTF-8');

$debug = 1;
$mode = NULL;


function fetchsite($url = NULL, $matrikel = NULL, $password = NULL) {
	global $debug, $mode;

	if ($debug) {
		if ( isset($_GET['matrikel']) && isset($_GET['password']) ) {
			// curl http://localhost/test.php?matrikel=<matrikel>&password=<password>
			$matrikel = $_GET['matrikel'];
			$password = $_GET['password'];
			$mode = 'http';

		} else if ( isset($_SERVER['argc']) && $_SERVER['argc']>=1 ) {
			// php -f file.php <matrikel> <password>
			$matrikel = $_SERVER['argv']['1'];
			$password = $_SERVER['argv']['2'];
			$mode = 'shell';
		}
	}

	$login_url = "http://www.ba-dresden.de/index2.php?menu=5";
	$cookie = tempnam(sys_get_temp_dir(), 'cookie');

	if ( $url && $matrikel && $password ) {

		$ch = curl_init();
		curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie);
		curl_setopt($ch, CURLOPT_URL, $login_url);
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, "matrikelnr=" . $matrikel . "&passwort=" . $password);

		ob_start();      // prevent any output
		curl_exec($ch); // execute the curl command
		ob_end_clean();  // stop preventing output

		curl_close($ch);
		unset($ch);

		if ($debug) {
			if (file_exists($cookie)) {
				$f = fopen($cookie, "r");
				if ($mode == 'http') echo "<pre>+ + + C O O K I E + + +";
				if ($mode == 'shell') echo "+ + + C O O K I E + + +\n";
				while (!feof($f)) {
					$buffer = fgets($f, 4096);
					if ( strpos($buffer, "#") === false ) echo $buffer;
				}
				fclose($f);
				if ($mode == 'http') echo "+ + + + + + + + + + + +</pre>";
				if ($mode == 'shell') echo "+ + + + + + + + + + + +";
			} else {
				if ($mode == 'http') echo "<pre>+ + + N O   C O O K I E + + +</pre>";
			}
		}

		$ch = curl_init();
		curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
		curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie);
		curl_setopt($ch, CURLOPT_URL, $url);

		$result = curl_exec($ch);
		curl_close($ch);
		unset($ch);
		unlink($cookie);

		return html_entity_decode(htmlentities($result));
	} else {
		if ($debug) echo "Worst!";
	}
}

function render2json($type = NULL) {
	global $matrikel, $password;
	
	if ( $type == "news" ) {
		$url = "";
		$html = fetchsite( $url, $matrikel, $password);
		
		// routine für die news
		
		return $json;
	} else if ( $type == "marks" ) {
		$url = ""
		$html = fetchsite( $url, $matrikel, $password);
		
		// routine für die noten
	} else {
		die "Routine nicht bekannt";
	}
}

?>